Type-writing machine.



S. P. HARRY.

TYPE WRITING MACHINE. AI'PLIOATIORAIILED 111:0. 3B. 1911.

Patented Apr. 2, 1912.

HISATTDRNEY Ireland, and residentof London, England,-

To all whom it may concern:

sr'ancmzirmmr ornivcrann, assxenoa r0 THEMOlVARGH TYPE-'1 J WRITER COMPANY, or isynacnsn, NEWYQRK, acoarormrronor nev Yon-K.

Tran-WRITI G MACHINE.

' Specification of rettersratent;

Patented Apr. 2;

,Applicationfiled December 28, 1911. Serial Ko. 668,242. I

Be it known that I; SPENCER subject of the King of GreatBrltain and have invented certainnew anduseiful Improvements'in Type- Writing Machlnes, of which the following is a specification.

I My' 'invention relates to ribbon spools for writing machines and has for 1 ts-ob ect toprovide anew and improved ribbon spool,

and one which is particularly adapted for the ready attachment and detachment of the ribbon in roll form.

In many styles of typewriting machines the'spools on the machine on which the r1bbon is wound have mounted upon them de- 3 reverse of the ribbon or change in the direcvices which operate automatically when the ribbon is completely u nWound toefFect the tion of its longitudinal feed. These spoolcarried reversing devices make the spools comparatively expens1ve,' and consequently it is not commonly practicable to supply new spools of regular pattern with each ribbon but; instead, the ribbons are furnished on cheap supply spools and are wound therefrom on to the regularworking spools, an

operation which is both tedious and. timeconsuming and also soils the hands of the operator.

of the chief Objects. y P esent in vention is to obviate these defects and in carrying out this object Iprov de a regular machine spool with a head or flange which is readily detachable from the hubportion of the spool, and associate with this hub portion a core device on which the ribbon 1s wound and which device may be readily removed and replaced, the construction and arrangement being such that when the core device with the ribbon wound thereon is applied to the hub the reversing device'which extends axially of the spool close to the huh I is received between the core and the inner in the usual manner to reverse'the'direction of feed of the ribbon.

My invention will be explained in'detail in connection with the accompanying drawing which lllustrates one form of my. lnvention, and in whicht Figure 1 1s a sectional view of a ribbon P. HARRY, a

thin neck portion 8. The spool further comvided with holes or openings 10 designed'for,

spool to which my invention is appliedythei;

section being taken parallel to the spool; flanges ona plane represented by the dotted the direction of the arrows at said linef Fig.

3 is a sectional view corresponding to Fig. .2 I but showing the ribbon completely unwound 56 and the reversing devices which are attached to the spool in operative position. Fig. 4

a p w of the detachable spool'head 01f flange. Fig. 5 is a perspective view of the f container or core device on which'the ribbonfY is wound and which device is attachable to" and detachable fromthe spool proper. j v

- While my invention may be applied to] various stylesof writing machine spools,'I

have preferred to show-it herein as applied" to a spool of a pattern adapted for usinf the Monarch typewriting machine and pro p vided with ribbon reversing devices of the? character employed in said machine and] disclosed in the patent to George B. Brand;

No. 960,804, granted June. 7 1910.

In the drawing, '1 indicates a circular-1"? disk-like spool' head or flange which in the present instance is the under or lower flange that is seated at the bottom of the usualk spool cup of the Monarch machine. Piv I otedto the under face of. the flange 1 13a reversing cam plate 2 which normally is held in contactwiththe under faceoflthe flange a horizontally disposed :arrn' 30f 9 a reversing device or bell crank lever. which is fulcrumed at 4 to the fiange l and further includes an upright arm or portion5 which extends through a slot in the flangel and l is adapted to cooperate with the inner'rend portion or fold of the ribbon. I I Thehub portion of the present spoolpcomprises a plurality of postsor pins 6 perma nently fixed to. and projecting upward from r the head orflangel. A set of three-postslism w shown in the present instance, the set being triangularly arranged and each post-,termie nating ina head 7 which is rounded and somewhat pointed at the top and is joined to the body of the post by a comparatively prises a detachable flange or head 9procooperation with the posts. The holes .10 are triangularly arranged in correspondence 119 with the posts 6 but the distance between them is slightly less than the distance between the posts when the flange 9 is detached. Consequently'when the flange 9 is applied-to the posts and the pointed heads, thereof engage with the holes 10 it will be necessary to ress the flange 9 downward or toward the ange l-with a' suflicient pressure to force the heads 7 toward each other far enough to permit them to pass through the holes 10, the posts 6, while substantially rigid, having sufficient spring or give for the purpose. Vhen the heads have passed through the holes the inherent spring in the posts will cause them to spring apart until the neck portions 8 engage with the Walls of the holes 10 at the points farthest from the axis of the spool as will be clearly understood from Figs. 2 and 3. The shoulders 11 formed by the junction of the bodies of the 'posts 6 with the associate necks 8 will limit the movement of the flange 9 toward the flange 1. VVit-h the holes 10 in cooperation with the necks 8 the flange 9 will'be confined between the shoulders 11 and the under side of the heads 7, and will be frictionally engaged with the necks 8.

Thus the flange 9 is frictionally connected to the hub portion of the spool, the construction being such that while the flange 9 maybe readily detached and attached, it is nevertheless when in place on the spool, securely connected thereto and maintained at a proper and predetermined distance from the flange 1 by the hub comprising the set of headed posts.

The spool proper' may be said to comprise the twofl'anges l and 9 and .the connecting hub portion orposts 6; but the spool contrivance or spool as a whole further comprises a detachable or disconnectible ribbon carrier, container or core device which is designed to fit loosely over the.hub portion or posts 6. The core device, which is clearly shown'in Fig. 5 where it is designated as a whole by the numeral 12, is preferably made of a single piece of sheet metal bent or folded to a general triangular shape and having its ends suitably connected as by a rivet 13. One of the sides 14 of the core device is depressed or bent inward toward the center and the ends of this side terminate in outward projections or lugs 15, each comprising two thicknesses or plies of the metal. One of the other sides is punched'to provide a set of prongs 16 or attaching devices for the inner end of the ribbon 17. The end of the ribbon having been attached to the core 12.

by being hooked over the prongs 16, its first fold or ply will, as clearly shown in Fig. 1, pass over and around the projections 15, thus providing a considerable space or opening designated as 18 in Fig. 1 between the inner face of the first ribbon ply and the face of the side or wall 14 of the core device.

to the spool, thefiange 9 is removed and a,

core device 12 having a ribbon fully wound thereon is slipped down or entered over the posts 6. During this operation the upright arm '5 of the releasing device or lever is pressed in by the operator so as to maintain thecam plate 2 against the flange 1 as in Fig. 2 and the core device is thereupon arranged so that the arm 5 will extend upward through the space 18 between the ribbon and the side 14, as will be from Figs. 1 and 2.

will be apparent thatleases the arm 5 after having slipped the 'core device inplace, said arm will still be maintained in the position shown in Figs. 1 and 2 by reason of its contact with the inner end portion, fold or ply of the ribbon 17 which fold acts as a stop for the arm. Thereafter the flange 9 may be replaced, the headed endsiof the posts serving as latching devices to detachably connect said flange to the spool and the core device and ribbon being then confined to the spool between the flanges 1 and .9. The upright shaft on which the ribbon spool is detachably mounted through holes 19 in the spool flanges and from which the spool receives turning or rotary movements during the operation of the machine is not shown herein but is or may From these figures it be of the usual Monarch construction or of any other suitable construction. It will be understood that when in the course of printing operations the ribbon is completely un wound from the core or carrier 12 it will free the upright arm or releasing device 5 and permit the caniplatc 2 to drop down to operative position for coiiperat-ion with the other releasing devices of the .Monarch machine as set forth in the aforesaid patent to Brand. a

It will be seen that I provide a novel ribbon spool which comprises a detachable flange connectible to and disconnectiblc from the-spool with readiness and facility, the construction being such that it enables a core device, ribbon carrier or container to be quickly and conveniently applied toand removed from the spool proper; that the ribbon is wound on thedetachable core so as to provide a space between the core'and the ribbon for the reception of a reversing declearly understood when the operator revice which is mounted on the spool proper;

--or-, in other words, that the core device 1s .sqnnd, release, said reversing device so it'hat y efi'eet' a. reversal of the ribbon. my'invention provides a ribbon spool especially suitable for a ribbon spool sup- "plied'with reversing mechanism, enabling a construction which greatly facilitates ribon renewals, and also a construction which ribbOn tobe put in place and removed with ffacility' and despatch without interfering I, with the-proper operation of the'ribbon reversing mechanism. if Various changes may bemade without ("departing from the spirit and scopeof my in en io 9 WhatI claim as new and desire to secure by Letters Patent, is v a e 1' .f'A ribbon spool for writing machines [comprising a flange, a hub, said flange and "sai d'hub being rigidly related, and a second flange. detachable from said rigid hub, said rigid hub alone maintaining the two flanges properly spaced apart. I

2.1K ribbon spool -for writing machines comprising two flanges and a hub, and latching devices integral with said hubv for detachably connecting vone of said flanges, said latching devices serving to maintain said detachable flange in proper Working relationship to the other flange.

3'. A ribbon spool for writing machinescomprising two flanges and a connecting hub, one of .said flanges being frictionally connected to said hub and the other flange being rigidly connected to said hub, said frietionally connected flange being maintained at a predetermined distance from the other flange by the rigid hub alone.

l .4. A ribbon spool for writing machines comprising a head or flange, a post or pin permanently and rigidly fixed to said head, and a second flange frictionally. connected to said post and in part maintained by a device integral with said post at a predetermined distance from the first named flange, said device preventing movement toward or away'from the first named flange.

5, A ribbon spool. for writing machines comprising a head or flange, a' pluralit-y of posts permanently secured to sald head,and a detachable head engaging said posts.

(3. A ribbon spool for writing machines comprising a head or flange, a plurality of posts secured thereto, and a detachable head provided with holes frictlonally engaging the outer ends of said posts. v

7. A ribbon spool for writing machines comprising a head or flange, a plurality of which the spool carries, but will, when fully grooved outer ends, and a detachable' head formed with holes in which the ends of said posts engage under tensionllj,

5 8. A ribbon spo'olfor writing machines comprising a header flange, a pluralityof posts secured thereto and r ooved outer ends, and a detachable spodl provided'fwith ange formed with holes in" which-f the;

grooved ends of said posts engage,the h'oles* being so spaced as to draw th'epos'tS toward each other and cause frictional engagement between them and the detachable head;

9. A ribbon spool for writing "machines;

comprising a head or flange, three pins secured thereto, said posts being: triangularlyt arranged and terminatingtin rounded vheads or endsconnected'by' necks of lesser diameter with the body portions vofi "fee" for engaging'the hea ds lfot the posts, and a detachable spool flange vided with holes the posts. 1 a

10. A ribbon spool for writing machines,

comprising a flange, three posts or pins sew' cured thereto, said posts being tria'n 'larly arranged and terminating rounde heads or ends connected by necks of lesser diam,

eter with the body portions of the posts,

and a detachable spool flangeprovidedw:

with holes for engaging the heads ofthe post heads so that when the. detachable flange is forced into engagement withthe posts, the holes being spaced apart distances slightly less than the distance between the comprising atflange, three triangularly or:

ranged posts secured to said flange and each terminating in a rounded head, a detach able spool-flange provided with holes engaging the heads of the posts, and a detachable core device adapted to fitover said heads.

12. A ribbon spool for writing machines provided with a hub and carrying a ribbon reversing device extending along the hub,

and a detachable core device on which the ribbon is wound, said core device being adapted to be arranged upon the hub with said ribbon rovers-mg device in direct engagement with the inner end portion of the ribbon;

' 13., A ribbon spool for writingmachines provided with a hub and carrying a ribbon reversing device adjacent to the hub, a detachable core device on which the ribbon is wound, said core device being adapted to be arranged upon the hub with said ribbon reversing device. in direct engagement with the inner end portion of the ribbon, and a detachable spool-flange cotiperating with the hub to hold the ribbon in place on the spool.

14. A ribbon spool for writing machines provided with a ribbon reversing device, and a disconnectible core device on which the I which 1s Wound, said core her folds of the ribbon may cooperate with the ribbon reversing device to retain it ininoperative position.

I5 15. A ribbon spool for writing machines comprising parallel flanges and a connectinghub portion, devices for affording a ready attachment and detachment of one of said flanges, and a detachable core device associated with said hub portion and on which the ribbon is wound.

16. A ribbon spool for writing machines com rising a removable flange or head,

=latc ing devices for detachably connecting said flange to the spool, and a core device on the ribbon is wound, said core device being loose on the spool and readily detachable after said flange has been removed.

17. A ribbon spool for writing machines comprising parallel flanges one of which is removable and frictionally connected to the spool, and a core device on which the ribbon device being readily detachable after the removable flange has been detached.

18. A ribbon spool for writing machines comprising a head or flange, a plurality of posts permanently. secured to said head, a second head detachably engaging said posts, and a removable core on which the ribbon is wound, said core being confined between said heads.

19. A ribbon spool for Writing machines provided with a ribbon reversing device, and

a core device on which the ribbon is Wound, attachable so that the ribbonwill confine the reversing device to inoperative position but will when fully unwound release said device so that it may effect a reversal of the ribbon. 20. A ribbon spool for writing machines comprising a detachable core on which the ribbon is wound so as to provide a space between the core and the ribbon for the reception of a reversing device. I i

21. A ribbon spool for writing machines comprising a detachable core ,on which the ribbon is Wound so as to provide a-space between the core and the ribbon for the reception of a reversing device mounted on the spool proper and extending along the core.

22. A ribbon spool for writing machines comprising a flange carrying a reversing cam, a reversing lever fulcrumed on said flange and cooperating with same cam, a

second flange detachably connected to the first flange, and a movable core device on which the ribbon is wound, said core device being received between the flanges, while the reversing lever enters a space between said core device and the ribbon.

Signed at London, England, this sixth day of December A. D. 1911.

, SPENCER PHILIP HARRY.

Witnesses:

D. JAMESON, O. J. WORTH. 

